The Cometic gasket kit for 2007 and later FL models with a Jims 4.00‑inch bore supplies a complete seal set for top‑end rebuilds. Cometic validates designs using in‑house dyno and engine assembly testing, and the parts are proven on street and track. The product title notes that a head gasket is not included, giving builders flexibility when assembling the head and top‑end components.
Cometic 2007+ FL Models Jims 4in Bore Complete Gasket Kit